/**
* @license
* Copyright Google Inc. All Rights Reserved.
*
* Use of this source code is governed by an MIT-style license that can be
* found in the LICENSE file at https://angular.io/license
*/
(function (global, factory) {
	typeof exports === 'object' && typeof module !== 'undefined' ? factory() :
	typeof define === 'function' && define.amd ? define(factory) :
	(factory());
}(this, (function () { 'use strict';

/**
 * @license
 * Copyright Google Inc. All Rights Reserved.
 *
 * Use of this source code is governed by an MIT-style license that can be
 * found in the LICENSE file at https://angular.io/license
 */
var ProxyZoneSpec = /** @class */ (function () {
    function ProxyZoneSpec(defaultSpecDelegate) {
        if (defaultSpecDelegate === void 0) { defaultSpecDelegate = null; }
        this.defaultSpecDelegate = defaultSpecDelegate;
        this.name = 'ProxyZone';
        this._delegateSpec = null;
        this.properties = { 'ProxyZoneSpec': this };
        this.propertyKeys = null;
        this.lastTaskState = null;
        this.isNeedToTriggerHasTask = false;
        this.tasks = [];
        this.setDelegate(defaultSpecDelegate);
    }
    ProxyZoneSpec.get = function () {
        return Zone.current.get('ProxyZoneSpec');
    };
    ProxyZoneSpec.isLoaded = function () {
        return ProxyZoneSpec.get() instanceof ProxyZoneSpec;
    };
    ProxyZoneSpec.assertPresent = function () {
        if (!ProxyZoneSpec.isLoaded()) {
            throw new Error("Expected to be running in 'ProxyZone', but it was not found.");
        }
        return ProxyZoneSpec.get();
    };
    ProxyZoneSpec.prototype.setDelegate = function (delegateSpec) {
        var _this = this;
        var isNewDelegate = this._delegateSpec !== delegateSpec;
        this._delegateSpec = delegateSpec;
        this.propertyKeys && this.propertyKeys.forEach(function (key) { return delete _this.properties[key]; });
        this.propertyKeys = null;
        if (delegateSpec && delegateSpec.properties) {
            this.propertyKeys = Object.keys(delegateSpec.properties);
            this.propertyKeys.forEach(function (k) { return _this.properties[k] = delegateSpec.properties[k]; });
        }
        // if set a new delegateSpec, shoulde check whether need to
        // trigger hasTask or not
        if (isNewDelegate && this.lastTaskState &&
            (this.lastTaskState.macroTask || this.lastTaskState.microTask)) {
            this.isNeedToTriggerHasTask = true;
        }
    };
    ProxyZoneSpec.prototype.getDelegate = function () {
        return this._delegateSpec;
    };
    ProxyZoneSpec.prototype.resetDelegate = function () {
        var delegateSpec = this.getDelegate();
        this.setDelegate(this.defaultSpecDelegate);
    };
    ProxyZoneSpec.prototype.tryTriggerHasTask = function (parentZoneDelegate, currentZone, targetZone) {
        if (this.isNeedToTriggerHasTask && this.lastTaskState) {
            // last delegateSpec has microTask or macroTask
            // should call onHasTask in current delegateSpec
            this.isNeedToTriggerHasTask = false;
            this.onHasTask(parentZoneDelegate, currentZone, targetZone, this.lastTaskState);
        }
    };
    ProxyZoneSpec.prototype.removeFromTasks = function (task) {
        if (!this.tasks) {
            return;
        }
        for (var i = 0; i < this.tasks.length; i++) {
            if (this.tasks[i] === task) {
                this.tasks.splice(i, 1);
                return;
            }
        }
    };
    ProxyZoneSpec.prototype.getAndClearPendingTasksInfo = function () {
        if (this.tasks.length === 0) {
            return '';
        }
        var taskInfo = this.tasks.map(function (task) {
            var dataInfo = task.data &&
                Object.keys(task.data)
                    .map(function (key) {
                    return key + ':' + task.data[key];
                })
                    .join(',');
            return "type: " + task.type + ", source: " + task.source + ", args: {" + dataInfo + "}";
        });
        var pendingTasksInfo = '--Pendng async tasks are: [' + taskInfo + ']';
        // clear tasks
        this.tasks = [];
        return pendingTasksInfo;
    };
    ProxyZoneSpec.prototype.onFork = function (parentZoneDelegate, currentZone, targetZone, zoneSpec) {
        if (this._delegateSpec && this._delegateSpec.onFork) {
            return this._delegateSpec.onFork(parentZoneDelegate, currentZone, targetZone, zoneSpec);
        }
        else {
            return parentZoneDelegate.fork(targetZone, zoneSpec);
        }
    };
    ProxyZoneSpec.prototype.onIntercept = function (parentZoneDelegate, currentZone, targetZone, delegate, source) {
        if (this._delegateSpec && this._delegateSpec.onIntercept) {
            return this._delegateSpec.onIntercept(parentZoneDelegate, currentZone, targetZone, delegate, source);
        }
        else {
            return parentZoneDelegate.intercept(targetZone, delegate, source);
        }
    };
    ProxyZoneSpec.prototype.onInvoke = function (parentZoneDelegate, currentZone, targetZone, delegate, applyThis, applyArgs, source) {
        this.tryTriggerHasTask(parentZoneDelegate, currentZone, targetZone);
        if (this._delegateSpec && this._delegateSpec.onInvoke) {
            return this._delegateSpec.onInvoke(parentZoneDelegate, currentZone, targetZone, delegate, applyThis, applyArgs, source);
        }
        else {
            return parentZoneDelegate.invoke(targetZone, delegate, applyThis, applyArgs, source);
        }
    };
    ProxyZoneSpec.prototype.onHandleError = function (parentZoneDelegate, currentZone, targetZone, error) {
        if (this._delegateSpec && this._delegateSpec.onHandleError) {
            return this._delegateSpec.onHandleError(parentZoneDelegate, currentZone, targetZone, error);
        }
        else {
            return parentZoneDelegate.handleError(targetZone, error);
        }
    };
    ProxyZoneSpec.prototype.onScheduleTask = function (parentZoneDelegate, currentZone, targetZone, task) {
        if (task.type !== 'eventTask') {
            this.tasks.push(task);
        }
        if (this._delegateSpec && this._delegateSpec.onScheduleTask) {
            return this._delegateSpec.onScheduleTask(parentZoneDelegate, currentZone, targetZone, task);
        }
        else {
            return parentZoneDelegate.scheduleTask(targetZone, task);
        }
    };
    ProxyZoneSpec.prototype.onInvokeTask = function (parentZoneDelegate, currentZone, targetZone, task, applyThis, applyArgs) {
        if (task.type !== 'eventTask') {
            this.removeFromTasks(task);
        }
        this.tryTriggerHasTask(parentZoneDelegate, currentZone, targetZone);
        if (this._delegateSpec && this._delegateSpec.onInvokeTask) {
            return this._delegateSpec.onInvokeTask(parentZoneDelegate, currentZone, targetZone, task, applyThis, applyArgs);
        }
        else {
            return parentZoneDelegate.invokeTask(targetZone, task, applyThis, applyArgs);
        }
    };
    ProxyZoneSpec.prototype.onCancelTask = function (parentZoneDelegate, currentZone, targetZone, task) {
        if (task.type !== 'eventTask') {
            this.removeFromTasks(task);
        }
        this.tryTriggerHasTask(parentZoneDelegate, currentZone, targetZone);
        if (this._delegateSpec && this._delegateSpec.onCancelTask) {
            return this._delegateSpec.onCancelTask(parentZoneDelegate, currentZone, targetZone, task);
        }
        else {
            return parentZoneDelegate.cancelTask(targetZone, task);
        }
    };
    ProxyZoneSpec.prototype.onHasTask = function (delegate, current, target, hasTaskState) {
        this.lastTaskState = hasTaskState;
        if (this._delegateSpec && this._delegateSpec.onHasTask) {
            this._delegateSpec.onHasTask(delegate, current, target, hasTaskState);
        }
        else {
            delegate.hasTask(target, hasTaskState);
        }
    };
    return ProxyZoneSpec;
}());
// Export the class so that new instances can be created with proper
// constructor params.
Zone['ProxyZoneSpec'] = ProxyZoneSpec;

})));